Compute brake horsepower from torque and RPM.
Brake horsepower is the power at the flywheel derived from torque and engine speed. The 5252 constant makes the two units meet at that RPM. Horsepower is engineered torque at speed, so peak torque at low RPM does not tell you how much work the engine can do at high RPM.
Brake Horsepower
BHP = torque (lb-ft) x RPM / 5252
BHP = torque (lb-ft) x RPM / 5252 Brake horsepower is the power at the flywheel derived from torque and engine speed. The 5252 constant makes the two units meet at that RPM.
Horsepower is engineered torque at speed, so peak torque at low RPM does not tell you how much work the engine can do at high RPM.
This calculator takes 2 inputs: Torque, Engine RPM. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.